Work

Design and Experimental Study of a Control System for Synchronized Corn Seeding and Hole Fertilization

Year: 2025

Type: article

Abstract: To solve the problems of slow system response speed and poor uniformity of seeding and fertilizer application, this paper designs a control system for synchronized corn seeding and precision hole fertilization. A sliding mode control method with integral variable structure and disturbance observer composite (ISMDO-SMC) is proposed. Furthermore, a three-factor, five-level quadratic orthogonal rotation combination experiment was conducted to develop a mathematical model for parameter optimization using a multi-objective variable optimization method. Simulation results from four algorithms were compared, revealing a regulation time of 0.42 seconds, a recovery time to steady state of 0.13 seconds, and a descending rotational speed of 2.5 r/min, which demonstrates the strongest dynamic response and stability. Moreover, the optimal parameter combination was determined to be the forward speed of 2.8 km/h, the fertilizer discharge shaft speed of 42 r/min, and the fertilizer discharger opening of 5.5 mm, resulting in the fertilizer application error of 1.7 g and the seed-fertilizer spacing error of 2.2 mm. The results of this study provide a theoretical basis for achieving efficient and stable seeding and fertilization operations.

Source: INMATEH Agricultural Engineering

DOI: 10.35633/inmateh-75-91

Authors: Ziyu WANG, Hongchao WANG, Chunying LIANG, Naichen ZHAO

Institution: Heilongjiang Bayi Agricultural University

Language: English

Topic: Agricultural Engineering and Mechanization

Subfield: Mechanical Engineering

Field: Engineering

Domain: Physical Sciences

SDGs: Zero hunger, Industry, innovation and infrastructure

Open Access status: diamond

Funders: China Postdoctoral Science Foundation, National Key Research and Development Program of China